Investigators will abstract the glucose results from the patients' electronic medical records for data analysis purposes. The primary dependent variable is the mean difference in plasma glucose (fasting to 1-hr post 75-g glucose challenge, with vs. without snack. The secondary dependent variable is the mean difference in plasma glucose (fasting to 2-hr post 75-g glucose challenge, with vs. without snack). Student's t test will be used to analyze the differences between the standard 75-g OGTT results and the OGTT results following the almond pre-test snack. Analysis of variance will be used to analyze the data for confounding effects of ethnicity, gender, body mass index (BMI), and pre-test food and alcohol intake, physical activity, and perceived stress level.